Window-sash.



H. G. GEORGE. WINDOW SASH. APPLIGATION I'IL'BD' we. 25, 1911.

Patented Mar. 4, 1913.

wlflvsssssif x l/wewrbk awe/vans UNITED sra'rns- P TE T OFFICE.

HENRY C. GEORGE, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGNMENTS, TO INTERNATIONAL WINDOW MANUFACTURINGYCOMPANY, OE DOVER,DELAWARE, A CQRPORATION OF DELAWARE.

wINnoW-s AsH.

Specification of Letters Patent.

. Application filed August 25, 1911. Serial No. 645.928. 1

Patented Mar.4,191 3.

To on whom it may concern Be it known that I, HENRY G. Guonon, a citizenof the United States, residing at Philadelphia, county of Philadelphia,and State of Pennsylvania, have invented a new and useful Improvement inWindow-Sashes,

of which the following'is a full, clear, and exact description,-reference being had to the accompanying drawings, which form a part ofthis specification.

The object of my invention is to provide a Window sash adapted to swingon. a horizontal axis located between its upper and .lower ends andadapted to be automatically I i the shoe; Fig. 5 is a cross-section onthe line 55 of Fig. a is the window frame having the ordinary sashguides 5 and 0, one guide for the lower sash and the other for the uppersash. The invention is shown as applied to one sash only, but it will beunderstood that it is applicable to either or both sashes.

Instead of making a sash f ordinary width, I provide a sash oof lesswidth than the distance between guides Z) on opposite sides of theframe, and pivot the sash, on a horizontal axis, midway between itsupper and lower ends, as hereinafter described, to shoes 6 slidablevertically int-he sash.

It will be understood thatthe invention may be applied to any ordinarywindow by taking out the sash and sawing off the sash frame at oppositesides to form the shoes.

Along adjacentcorners of the sash cl and shoe 5 are formed rabbetsinwhich are insert T-shaped plates 1, one plate secured to the sash andthe other to the shoe.

The above construction, so far as described, is more fully described andalso claimed in the patent issued to me November 29, 1904, No. 776,177.

I will now describe the novel subjectemattel of-the present invention.

recessed between its upper and lowerends recess at g and in this recessis inserted the outer'55 plate It and the inner plate 2'.

k is an orifice extending through the shoe from the face thereof-nextthe window frame to the recess 9, that part of the orifice nearest therecess 9 being of smaller diameter than the "part of the orificeadjoining the window frame. The plate a is provided with a boss j, onepart of which extends toward the sash and the other part ofv which.extends into the Z is a plate secured to the face'of the sash adjacentto the recess g; On this plate is formed a pivot pin m which extendswithin,-

and is turnable upon, the boss 7'. Projecting narrower part of 18 65beyond'the outer end of the pin m is a projection a, through whichextends a cotter pino. i 79 1s a washer surroundmg'the proyectrou n andrestin between the cotterpin band; I

the ends of t e boss 7' and pivot pin m.

Secured to or formed upon the outer face of the plate Z, is a series ofradially extend ing teeth r. A cup or disk 8 issleeved on the boss 3'within the recess 9' and is pro- 30 vided with similar teeth t engagingthe teeth 1-. The flange of the cup 8 is provided with recesses uengaging projections. '22 on the plate. i, thereby preventing the cupfrom turning, but permitting the cup to have as; l

slight movement toward and from the shoe f 6. Between the plate 2' andcup .9 and surrounding the boss j is a fiat spiral spring w, whichnormally presses the teeth of cup 8 into engagement with the teeth 1' onthe sash.

From the foregoing description it will be I understood that the sash dis turnable upon the shoege. In said turning movement the teeth 1' ontheplate Z ride over the-teeth t on. the cup, causing the cup 8 .tovibrate toward and from the shoe 6, but the on cannot turn owing to theengagement 0 proment with the teeth'r, thereby holding sash in theposition to which it has. been turned. It will also be understood. thatthe 1' sash can be moved vertically as desired,l.the ;jlh5 shoes slidingin the window frame guides in .The face of each shoe opposite thesash isi tors Patent is:

what I claim and desire to protect by Let- 1. A sash pivot comprising aplate, a boss on the plate, a cup sleeved 0n the boss and having aplurality of radially extending teeth, means permitting the cup to slideon a the boss but preventing it from turning, a

second plate having a portion turnable in theboss and having a pluralityof radially extending teeth engaging the teeth on the cup and a springbetween the first plate and the cup normally pressing the cup teeth intoengagement with the teeth on the second lplate.

2. A sash pivot comprising a plate, a boss on the plate, a cup sleeved nthe boss and having a plurality of radially extending teeth, meanspermitting the cup to slide on the boss but preventing it from turning,a second plate having a portion turnable in the boss and having aplurality of radially 1 hereunto set my hand, at Philadelphia, Pa.

on this 23rd day of August, 1911.

y HENRY C. GEORGE. Witnesses FRANK S. BUssER, MARY E. I'lAMER.

